CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Guolong Li,Xi Wang,Di Zhang,Hiroshi Fu,Xiaoming Qian,Zhenxue Liu,Yaming Jiang,Songnan Zhang
Incorporating innovative technology into functional fabrics extends their utility and addresses the daily challenges posed by fabric icing. Identifying effective anti-icing/deicing strategy is essential to mitigate the associated inconveniences. In this study, polypyrrole (PPy), Fe 3 O 4 particles and polydimethylsiloxane (PDMS) are used as the raw materials to design an all-weather anti-icing and deicing functional fabric PDMS/Fe 3 O 4 /PPy@PET, presenting the photothermal/electrothermal and electromagnetic induction thermal functions. This functional fabric exhibits excellent hydrophobic performance with the contact angle of 152° and effectively delayed the droplet freezing for 181 s on a −10 ℃ cold table. The photothermal effect can reach an equilibrium temperature of 74.3 ℃ at 1 sunlight intensity and melt a 3 mm thick ice layer in 841 s. The electrothermal performance reaches to 72.2 ℃ at 10 V voltage and the ice layer is melted within 1436 s. The excellent electromagnetic induction thermal performance can reach to 71.4 ℃ in 5 min at 8 V voltage, and completely melt the ice layer in 444 s. In addition, the fabric offers excellent durability, abrasion resistance and UV resistance, allowing for long-term outdoor use. This opens up new ideas for the development of anti-icing and deicing functional fabric.
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高影响因子
Journal of Coatings Technology and Research
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2024
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IF 2.3
Huang Zhichao,Wang Lin,Wu Hongfu,Zhang Junfeng,Wang Zhuo,Sun Fu,Duan Huimin,Qi Dongming
Herein, a simple and efficient inorganic particle surface modification strategy was developed to improve the flame retardancy of flammable polyurethane (PU) materials while avoiding the serious degradation of their mechanical properties due to the incorporation of inorganic particles. Novel organic–inorganic hybrid hydroxylation ammonium polyphosphate (OHAPP) was fabricated via an ion-exchange reaction between APP and diethanolamine, and a PU/OHAPP film was prepared by crosslinking OHAPP with reactive PU via in situ polymerization. The curing properties, flame retardancy, and mechanical properties of materials were evaluated. Results showed that the addition of 15 wt% OHAPP in PU increased the tensile strength of the sample by 16% compared to PU alone. The peak heat release rate, total heat released, and total smoke produced from the materials measured via the conical calorimetric method were 337.2 kW/m 2 , 78.1 MJ/m 2 , and 8.9 m 2 , respectively, which were 63.8%, 43.6%, and 15.2% lower than those of PU. Additionally, the flame-retardant mode of action of the PU/OHAPP film was verified. This study is a useful reference for further studies on flame-retardant materials.
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高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-13
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IF 14.7
Yi Bo,Li Tianjie,Yang Boguang,Chen Sirong,Zhao Jianyang,Zhao Pengchao,Zhang Kunyu,Wang Yi,Wang Zuankai,Bian Liming
Effective and easy regulation of hydrogel surface properties without changing the overall chemical composition is important for their diverse applications but remains challenging to achieve. We report a generalizable strategy to reconfigure hydrogel surface networks based on hydrogel–substrate interface dynamics for manipulation of hydrogel surface wettability and bioadhesion. We show that the grafting of hydrophobic yet flexible polymeric chains on mold substrates can significantly elevate the content of hydrophobic polymer backbones and reduce the presence of polar groups in hydrogel surface networks, thereby transforming the otherwise hydrophilic hydrogel surface into a hydrophobic surface. Experimental results show that the grafted highly dynamic hydrophobic chains achieved with optimal grafting density, chain length, and chain structure are critical for such substantial hydrogel surface network reconfiguration. Molecular dynamics simulations further reveal the atomistic details of the hydrogel network reconfiguration induced by the dynamic interface interactions. The hydrogels prepared using our strategy show substantially enhanced bioadhesion and transdermal delivery compared with the hydrogels of the same chemical composition but fabricated via the conventional method. Our findings provide important insights into the dynamic hydrogel–substrate interactions and are instrumental to the preparation of hydrogels with custom surface properties.
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PubMed
高影响因子
Sustainability
·
2025
·Vol. 17
·期 15
·6987
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IF 3.3
Songling Chen,Fuxin Liu,Wenying Zhao,Jianrong Zhao,Xinlin Li,Jianfei Wang
Environmentally friendly coated urea prepared using a waterborne polymer coating material is essential for promoting green and sustainable practices in modern agriculture. However, significant efforts are still urgently needed to address the undesirable properties of waterborne polymer coatings, i.e., poor hydrophobic properties and numerous micropores. Herein, dual nano-SiO2and siloxane-modified waterborne-polymer-coated urea was successfully developed. The characteristics of waterborne-polymer-coated urea before and after modification were compared. The results demonstrate that nano-SiO2and siloxane modification improved the hydrophobicity (water absorption decreased from 119.86% to 46.35%) and mechanical strength (tensile strength increased from 21.09 to 31.29 MPa, and the elongation at break exhibited an increase of 22.42%) of the waterborne polymer coatings. Furthermore, the –OH number of the modified coatings was decreased, while the coating surface formed a nano-scale rough structure, prolonging the nitrogen (N)-controlled release period from 7 to 28 days. Overall, the proposed novel dual-modification technique utilizing waterborne polymer coatings highlights the significant potential of eco-friendly coated urea with renewable coatings in modern agriculture.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Rui Wu,Hao Yang,Meifeng Jiang,Hui Tong,Xinyu Hu,Ziyang Liu,Chunhua Luo,Hui Peng,Hechun Lin
Stimuli-responsive photoluminescent materials have garnered considerable attention due to their immense potential in enhancing security protection. However, achieving high-level multimodal anti-counterfeiting remains a challenge. In this work, we report on water-triggered stimuli-responsive luminescent crown-ether coordinated cuprous bromides (CCB) for multi-functional applications. The CCB powders were synthesized via mechano-chemical grinding CuBr, NaBr and 18-crown-6 ether (18C6) together. Depending on the amount of 18C6 incorporated into the reaction, the blue and green emission composites were obtained, respectively. Upon contact to water and subsequent thermal dehydration, both powders exhibit a fascinating cyclic and reversible transformation in their emission hues, seamlessly alternating between blue/green and orange. The three distinct emission states were identified and characterized as (18C6)NaCuBr 2 , (18C6) 2 Na(H 2 O) 2 CuBr 2 , and (18C6) 2 Na 2 (H 2 O) 3 Cu 4 Br 6 , respectively. These unique luminescent properties, coupled with their swift and repeatable stimuli-responsive behavior, position CCBs as novel and highly promising functional materials for applications in dynamic information storage and encryption. Based on CCBs, multi-modal anti-counterfeiting patterns and rewritable luminescent paper were successfully fabricated. Additionally, crown ether species and alkali metal ions exert a remarkable influence on the photophysical properties of CCBs. This research provides a novel strategy to develop multi-modal anticounterfeiting applications, expanding the horizons of security and authentication technologies.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Shixu Li,Hui Cao,Hui Zhao,Peng Wei,Luo Yue,Pengpeng Bai,Yonggang Meng,Yu Tian
Magnetorheological fluids (MRFs) are magnetically responsive smart materials widely employed in damping systems. However, their broader application is hindered by significant sedimentation-related issues. In this study, magnetic particles undergo surface modification using a hyperbranched surfactant, with the modification process guided by finite element simulations. Magnetization characterization demonstrates that, compared to unmodified magnetic particles, the polymer-modified particles exhibit increased oleophilicity while maintaining a minimal 1.1 % reduction in saturation magnetization. Correspondingly, the magneto-induced dynamic yield stress at 400 mT decreases by 5.59 % in MRFs containing modified particles relative to those with unmodified particles. Furthermore, the polymer modification enhances the interfacial bonding between particles and the carrier liquid, leading to an increase in the storage modulus. Notably, the anti-settling improves significantly, with the suspension stability increasing from 45.96 % to 88.68 % after 15 days. Molecular dynamics simulations further confirm that the polymer acts as an obstacle, preventing direct particle contact and thereby mitigating inter-particle interaction. These findings provide valuable insights into enhancing the long-term performance and reliability of MRF applications, thereby contributing to their continued development in engineering applications.
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
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2025
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IF 5.1
Yajie Zhang,Chuan Huang,Xingyuan Liao,Saiyaer Sidike,Mingming Guo,Yichuan Zhang
Carbonized polymer dots (CPDs) have been studied extensively for room temperature phosphorescence (RTP) due to their low cost, good biocompatibility and crosslink-enhanced emission effect. Although considerable achievements have been reached in recent years, it is still a formidable task to prepare long-lived RTP CPDs. Herein, the Arg-CPDs was introduced into a rigid boric acid (BA) matrix to enhance the RTP lifetime of the Arg-CPDs@BA composites. The nitrogen-rich arginine framework integrated with phosphorus doping enhances spin-orbit coupling and accelerates the intersystem crossing and promotes the generation of triplet excitons. The formed C B covalent bond between Arg-CPDs and rigid B 2 O 3 matrix restricts the vibration and rotation of CPDs, thus inhibiting the non-radiative transition of the triplet excitons and making the composite exhibit a relatively long-lived RTP emission of 983 ms (18 s for naked eyes). It was nearly seven times longer than that of the matrix-free Arg-CPDs. Besides, the potential applications in anti-counterfeiting and white light-emitting diodes were demonstrated.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
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2025
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IF 4.3
Ranying Jiang,Haozhe Yi,Daofan Ma,Taotao Fu,Chunying Zhu,Guangwei Wang,Youguang Ma
The droplet adsorption has many potential applications in microchemical engineering process, vesicle preparation and other various fields. However, the study on adsorption mechanisms and enhancement method remains still scarce so far. The droplet adsorption at the liquid–liquid interface relies primarily on the lubrication pressure in the liquid film, which determines the operating range of adsorption. The interaction between nanoparticles and surfactants distributed in two distinct phases could greatly affect the stability of the liquid film, thereby facilitating the droplet adsorption. In this study, a liquid–liquid–liquid three-phase system is constructed and the enhancement effect of interaction between nanoparticles and surfactants on the droplet interface adsorption process is visually investigated. The influences of the nanoparticle size on the interfacial dynamics and the operating range of droplet adsorption are studied systematically, and the adsorption and enhancement mechanisms are explored. It is found that the electrostatic interaction between PS-COOH NPs and PDMS could promote the rupture of the liquid film. The dense arrangement of nanoparticle-surfactant monolayer at the interface would hinder the evolution of the adsorption interface. Appropriate increase in the size of nanoparticles could facilitate the droplet adsorption process.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Tao Zhang,Yumian Liu,Jiahe Ru,Yan Pang,Chunqing Zha,Jun Li,Xiang Wang
The behavior of neck breakup and the prediction of droplet volume during Janus droplet generation are investigated experimentally. The generation processes of Janus droplets can be divided into four distinct stages: the uniform extension stage, the accelerated extension stage, the radial necking stage and the rapid breakup stage, while the first two stages represent the filling stage of the droplet tip. Under varying continuous phase flow rates, the diameter of the droplet neck has the uniform evolution with time, and the droplet interface profiles exhibit self-similar characteristics. Differences in the physical properties of the two dispersed phases result in asymmetric contraction at the upper and lower interfaces of the Janus droplet neck, but this influence is reduced near the breakup time of the droplet in the way that the neck contraction tends to synchronize. The volume prediction model is proposed based on the local capillary number of the continuous phase, which demonstrates that the droplet volume consistently decreases as the continuous phase flow rate increases.
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高影响因子
Plasmonics
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2025
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IF 4.3
Li Zhoujie,Liu Ting,Lin Zhipeng,Liu Jie,Song Zhaojun
To achieve a compact and robust structure, a reflective optical fiber surface plasmon resonance (SPR) sensor is proposed for the simultaneous measurement of glucose concentration and temperature. The fiber probe uses the multimode optical fiber-single mode optical fiber-multimode optical fiber (MSM) heterojunction structure, in which the region with a gold film is used to sense glucose concentration, while the other region with a gold film and a polydimethylsiloxane@gold (PDMS@Au) composite is used to sense temperature. A silver film for light signal reflection is coated on the end face of the fiber probe to improve the signal-to-noise ratio (SNR). The sensor successfully overcomes cross-sensitivity and achieves sensitivities of 3.05 nm/% and − 1.69 nm/°C for glucose concentration and temperature, respectively. The proposed sensor can realize high-precision sensing of glucose and other biological analytes with temperature compensation. In addition, the reflective sensing structure makes the system compact and flexible, which enables remote detection and in-situ monitoring. The proposed sensor has a wide range of applications in the fields of food safety, biochemistry, and environmental monitoring.
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高影响因子
JOURNAL OF ELECTROSTATICS
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2025
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IF 2.1
Wenbo Zhu,Kaulya Pathiraja,Baojun Hui,Xu Guo,Mingli Fu,Shijie Du,Linjie Zhao,Yuhuai Wang,Jin Li
HVDC GIS cable terminals, where the cable connects to gas insulated switchgears, are particularly vulnerable to breakdown caused by factors such as high temperature, lack of pressure, space charge accumulation, and material degradation. This study explores stabilizing silicone oil coating, by incorporating benzene derivatives. The paper proposes the use of quantum chemical calculations (QCC) to identify suitable additives that can optimize the performance of silicone oil. By enhancing the dielectric properties and thermal stability of silicone oil, this research seeks to reduce interface discharge and increase the longevity and reliability of high-voltage cable terminals.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Bo Ouyang,Mingzhu Ma,Bingkun Gao,Guicai Liu,Anhou Xu
This study introduces a novel method for enhancing the antifouling properties of self-healing silicone coatings through synergistic modification with fluorocarbon and zwitterionic side chains. A zwitterionic amphiphilic polymer chain extender, synthesized via chain transfer from 2-methacryloyloxyethyl phosphorylcholine (MPC) and 1H,1H,3H-hexafluorobutyl methacrylate (HFBMA), was incorporated into a polydimethylsiloxane (PDMS)-based polyurea matrix. The migration of zwitterionic moieties to the surface in aqueous environments facilitated the enrichment of fluorinated chains, creating an amphiphilic surface that effectively resisted protein adsorption and diatom attachment. The coating demonstrated superior antifouling performance, with a significant reduction in protein adsorption (up to 85.7 %) and diatom adhesion (over 86.9 %). Additionally, the coating exhibited excellent fouling-release properties, achieving a 73.1 % removal rate for settled diatoms under hydrodynamic conditions and reducing simulated pseudobarnacle removal strength by 72.6 %. The self-healing capability, driven by a dense hydrogen-bond network, further enhanced the coating's durability and mechanical properties. This work offers a new strategy for fabricating environmentally friendly, durable antifouling coatings for marine applications, highlighting the potential of novel amphiphilic coatings.
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高影响因子
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